Heat dissipation device and heat dissipation method for photovoltaic grid-connected inverter
A technology of cooling device and inverter, applied in output power conversion device, photovoltaic power generation, cooling/ventilation/heating transformation, etc. Bomber etc.
Active Publication Date: 2016-08-24
GUANGZHOU SANJING ELETRIC
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Problems solved by technology
[0003] At present, usually high-power photovoltaic grid-connected inverters require a large potting inductor for filtering, but often the potting inductor generates a lot of heat, and many photovoltaic companies do not perform good heat dissipation. When used for a long time It will affect the service life of the photovoltaic grid-connected inverter and the performance of the machine. For example, after a long time of use, the influence of the wave pattern will cause the possibility of bombing. Therefore, how to design a method to ensure the heat dissipation of the potted inductor cooling device, it is very necessary
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[0021] The preferred embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.
[0022] refer to figure 1 and figure 2 As shown, a cooling device for a photovoltaic grid-connected inverter provided in this embodiment includes a radiator 10 for installing a heating module in a photovoltaic grid-connected inverter, a waterproof fan assembly 17 provided at the lower end of the radiator 10, A closed low-pressure cavity located at the lower end of the waterproof fan assembly 17, a potted inductor component 14 located at the lower end of the sealed low-pressure cavity, and an air intake device for providing cold air to the potted inductor component 14.
[0023] Specifically, in the present invention, the two sides of the radiator...
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The invention relates to the technical field of heat dissipation, and discloses a heat dissipation device and method for a photovoltaic grid-connected inverter. The heat dissipation device comprises a radiator for mounting a heating module in the photovoltaic grid-connected inverter, a waterproof fan assembly arranged at the lower end of the radiator, a closed low pressure cavity arranged at the lower end of the waterproof fan assembly, an encapsulated inductance assembly arranged at the lower end of the closed low pressure cavity, and an air intaking device for providing cold air for the encapsulated inductance assembly. According to the arrangement of the radiator, the waterproof fan assembly, the closed low pressure cavity and the encapsulated inductance assembly, heat dissipation of the radiator and the encapsulated inductance assembly can be realized simultaneously when the temperature of the radiator reaches a certain temperature.
Description
technical field [0001] The present invention relates to the technical field of heat dissipation, and more specifically relates to a heat dissipation device and a heat dissipation method for simultaneously dissipating heat from a heat sink and a potting inductor in a photovoltaic grid-connected inverter. Background technique [0002] The photovoltaic grid-connected power generation system is a photovoltaic power generation system that is connected to the grid and transmits power to the grid. The photovoltaic grid-connected inverter is an important part of the photovoltaic grid-connected power generation system. It is used to convert the direct current from the solar panel into alternating current, so as to output a sinusoidal alternating current with the same frequency and phase as the grid voltage to the grid. [0003] At present, usually high-power photovoltaic grid-connected inverters require a large potting inductor for filtering, but often the potting inductor generates ...
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IPC IPC(8): H05K7/20H02M1/00
CPCY02E10/56
Inventor 陈小均卢雪明
Owner GUANGZHOU SANJING ELETRIC